18818875 has 8 divisors (see below), whose sum is σ = 23486112. Its totient is φ = 15055000.

The previous prime is 18818867. The next prime is 18818909. The reversal of 18818875 is 57881881.

It is not a de Polignac number, because 18818875 - 2³ = 18818867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75151 + ... + 75400.

It is an arithmetic number, because the mean of its divisors is an integer number (2935764).

Almost surely, 2^18818875 is an apocalyptic number.

18818875 is a deficient number, since it is larger than the sum of its proper divisors (4667237).

18818875 is an equidigital number, since it uses as much as digits as its factorization.

18818875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150566 (or 150556 counting only the distinct ones).

The product of its digits is 143360, while the sum is 46.

The square root of 18818875 is about 4338.0727287587. The cubic root of 18818875 is about 265.9895364004.

The spelling of 18818875 in words is "eighteen million, eight hundred eighteen thousand, eight hundred seventy-five".